# Triggering FVC in a Subtable Per-Row and accessing that row in LB **URL:** \ **Category:** Nextworld Platform\ **Tags:** logic-blocks\ **Created:** [July 19, 2025, 12:23am UTC](https://community.nextw.com/t/triggering-fvc-in-a-subtable-per-row-and-accessing-that-row-in-lb/833 "2025-07-19T00:23:46Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![connor.hoffman](https://sea1.discourse-cdn.com/flex001/user_avatar/community.nextw.com/connor.hoffman/32/130_2.png) [@connor.hoffman](https://community.nextw.com/u/connor.hoffman)\ **Post date:** [July 19, 2025, 12:23am UTC](https://community.nextw.com/t/triggering-fvc-in-a-subtable-per-row-and-accessing-that-row-in-lb/833/1 "2025-07-19T00:23:46Z")
When a Logic Block is triggered by a subtable row field—such as when updating a list lookup value—how can I directly access the specific row that initiated the trigger within the Logic Block? ---
**Author:** ![ian.p](https://sea1.discourse-cdn.com/flex001/user_avatar/community.nextw.com/ian.p/32/427_2.png) [@ian.p](https://community.nextw.com/u/ian.p)\ **Post date:** [July 21, 2025, 2:53pm UTC](https://community.nextw.com/t/triggering-fvc-in-a-subtable-per-row-and-accessing-that-row-in-lb/833/2 "2025-07-21T14:53:21Z")
Add a `Loop Subtable` action and set `Select Current Subtable Row Only` to true should work I think. ![image](https://us1.discourse-cdn.com/flex001/uploads/nextworld/original/1X/4456f7dfd8f67865e0f1e3918c64527bd87bef2f.png) ---
**Author:** ![kyle.pecci](https://sea1.discourse-cdn.com/flex001/user_avatar/community.nextw.com/kyle.pecci/32/178_2.png) [@kyle.pecci](https://community.nextw.com/u/kyle.pecci)\ **Post date:** [July 21, 2025, 3:54pm UTC](https://community.nextw.com/t/triggering-fvc-in-a-subtable-per-row-and-accessing-that-row-in-lb/833/3 "2025-07-21T15:54:58Z")
Ian’s response is correct, however, as the help text in the screenshot says, this will only work for Subtables with a table type of Main. That checkbox does not work with Subtables of type Sub.